JPH05210907A - Magnetic head - Google Patents

Abstract

PURPOSE:To stabilize the running state by matching the center position in the magnetic medium running direction of a gimbals and the center position of a slider to each other to attach a slider assembly body on the gimbals and placing the pivot of a gimbals supporting member in the gimbals center. CONSTITUTION:A front core part 5 which consists of L-type and I-type cores and has an R/W gap 6 and an Er gap 7 formed is inserted into the window hole in the front of a slider 1. Gaps 6 and 7 are arranged 0.35mm and a certain distance above a slider center SC in the medium running direction respectively. The slider 1 in which this core part 5 is built upstream side is attached to a gimbals 8 while matching the SC and a gimbals center GC to each other. The pivot of the supporting member on the rear face of the gimbals 8 is so aligned that it presses the center GC of the rear face of the gimbals 8. Thus, the running state is stabilized, and alignment is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head used in a flexible disk drive device, and more particularly to a slider mounting structure for a preceding erase type magnetic head.

[0002]

2. Description of the Related Art Conventionally, in this type of magnetic head, a slider containing a head core portion is fixed to a gimbal, and the back surface of the gimbal is pressed and supported by a spring-like support member called a carriage, and the sliding surface of the slider is fixed. It is in contact with the magnetic medium. In this case, for example, in the 4 MB preceding erase type magnetic head, the recording / reproducing magnetic gap (R / W gap) of the head core portion is located at a position displaced by 0.35 mm from the center (gimbal center) of the gimbal in the traveling direction of the magnetic medium. The slider is attached to the gimbal,
The erasing magnetic gap (Er gap) is further equal to R /
It is usually located 0.2 mm upstream from the W gap in the traveling direction of the magnetic medium. Therefore, the center of the slider in the magnetic medium traveling direction (slider center) and the gimbal center are displaced by 0.45 mm in the medium traveling direction. The pivot of the gimbal pressing point formed on the supporting member (carriage) is located on the gimbal center, and the slider is supported on the pressing point.

[0003]

In the conventional magnetic head for a flexible disk drive device, the gimbal center and the slider center are displaced by 0.45 mm as described above.
The pressing point of the support member that presses the magnetic head against the magnetic medium,
That is, since the pivot position on the support member coincides with the gimbal center position, the support member supports and presses the center of the entire magnetic head, that is, the position displaced by 0.45 mm from the slider center, and the running state There was a problem that it was likely to become unstable. Further, in the conventional magnetic head of this type, since the head core and the slider are manufactured so that the R / W gap is located at the slider center, the slider center and the gimbal center are aligned and the slider is attached to the gimbal. When the center is supported by the supporting member, the R / W gap is not arranged at a predetermined position, which causes a trouble in the recording / reproducing function.

According to the present invention, the slider center and the gimbal center are aligned with each other to support the gimbal center, thereby stabilizing the traveling state and facilitating the alignment between the R / W gap and the slider center. It is to provide a magnetic head for a flexible disk drive device.

[0005]

In a magnetic head according to the present invention, a slider is arranged on the gimbal so that the left and right center positions of the gimbal in the magnetic medium running direction coincide with the slider center position, and the R / W gap of the head core portion. The position is displaced from the slider center by a predetermined amount in the magnetic medium traveling direction.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a plan view of a slider and a front core portion of a magnetic head for a flexible disk drive device according to an embodiment of the present invention, as seen from the magnetic medium contact surface (head front surface) side, and FIG. 2 is a line AA of FIG. It is a partial front sectional view along with. In this embodiment, a window 1a extending in the traveling direction of the magnetic medium is formed on the front surface of the slider 1 which is an integral type and has a box shape. The part 5 is inserted. As is well known, R / is provided between the I-shaped core 4 and one L-shaped core 2.
Although a W gap 6 and an Er gap 7 are formed between the I-shaped core 4 and the other L-shaped core 3, in the present invention, R /
The W gap 6 is formed at a predetermined distance from the slider center SC, for example, 0.35 mm upstream in the medium running direction, and the Er gap 7 is provided at a position a certain distance from this R / W gap position upstream in the medium running direction. It is arranged. The slider assembly in which the core portion 5 is assembled in this manner is attached to the gimbal 8 so that the slider center SC and the gimbal center GC coincide with each other, as shown in FIG. The back surface of the gimbal 8 is attached to a spring-like support member, and the pivot member 9 (FIG. 4) of the support member is aligned so as to press the center GC of the back surface of the gimbal 8. Therefore, in the present invention, the centers SC and GC of the slider 1 and the gimbal 8 are located on the pivot 9 of the supporting member, and the R / W gap 6 of the core portion is a predetermined distance from the gimbal center GC in the magnetic medium traveling direction, Specifically, they are displaced by 0.35 mm. With such an arrangement relationship, the supporting member always supports the center of the slider assembly and the gimbal 8, and stable traveling performance can be obtained.

In the above embodiment, the R / W of the front core portion is
The preceding erase type in which both the gap and the Er gap are displaced from the slider center to one side is shown.
The present invention is not limited to such a preceding erase type magnetic head. For example, the slider center SC may be located between the R / W gap 6 and the Er gap 7 as shown in FIG. Also in this case R
/ W gap position is 0.35m from slider center SC
The slider assembly is attached to the gimbal 8 so that the slider center SC and the gimbal center GC coincide with each other, and the pivot of the support member is positioned at the gimbal center position.

6 to 10 show still another embodiment of the present invention. In this embodiment, the slider 1 is of a type separated into two bodies, and the width L of the slider 1 in the magnetic medium running direction is equal to the length of the front core portion 5 in the same direction. The R / W gap 6 is a predetermined distance (eg, 0.35 m from the center FC of the front core portion).
m) The front core portion is sandwiched between the two sliders 1 formed at the displaced positions, and one side surface 1 in the magnetic medium traveling direction is formed.
Positioning is performed with 0 as a reference, and bonding is performed. Therefore, in this embodiment, the center FC of the front core portion 5 and the slider center SC are aligned with each other, and the slider center and the gimbal center GC are aligned with each other, so that the slider assembly is attached to the gimbal 8. The pivot of the support member for supporting the gimbal 8 is located on the gimbal center GC, as in the embodiment shown in FIGS. 1 to 4. 6 to 10, the centers of the front core portion 5, the slider 1, and the gimbal 8 are all coincident with each other, and the pivot 9 of the supporting member supports the center position, so that a more stable traveling state can be obtained. .

[0009]

As described above, according to the present invention, the gimbal center and the slider center are aligned with each other, the slider assembly is attached to the gimbal, and the gimbal center is supported by the pivot of the supporting member. Since the center of the slider assembly is pressed toward the magnetic medium, the running state of the magnetic head is stabilized. The slider and the gimbal can be easily aligned with each other.

[Brief description of drawings]

FIG. 1 is a plan view of a slider and a front core portion of a magnetic head for a flexible disk drive device according to an embodiment of the present invention, as viewed from the head front side.

FIG. 2 is a partial front sectional view taken along the line AA of FIG.

FIG. 3 is a plan view of the front surface of the head with the slider assembly according to the embodiment of the present invention assembled to the gimbal.

FIG. 4 is a front view of FIG.

FIG. 5 is a plan view of a slider and a front core part according to another embodiment of the present invention.

FIG. 6 is a plan view of a slider assembly of a magnetic head according to another embodiment of the present invention.

7 is a front sectional view taken along the line BB of the embodiment of FIG.

8 is a side view of the embodiment shown in FIG. 6 as seen from the arrow F. FIG.

9 is a plan view showing a state where the slider assembly of the embodiment shown in FIG. 6 is attached to a gimbal.

FIG. 10 is a front view of FIG.

[Explanation of symbols]

 1 Slider 5 Front core part 6 R / W gap 7 Er gap 8 Gimbal 9 Support member pivot FC Front core part center SC Slider center GC Gimbal center

Claims (1)

[Claims] 1. A slider is arranged on the gimbal so that the left-right center position of the gimbal in the magnetic medium traveling direction coincides with the slider center position, and the recording / reproducing magnetic gap position of the core portion travels by a predetermined amount from the slider center. A magnetic head characterized in that the magnetic heads are arranged at positions shifted in the direction.